commit 0a4a19398a66548b502aed8f490734c59cdca48a
author Dhruv Srivastava <dhruvsri@google.com> Wed Jun 10 16:26:06 2020 +0200
committer Dhruv Srivastava <dhruvsri@google.com> Tue Jun 16 17:42:54 2020 +0200
tree 15ad1da05a4a5c7054f913a48f42eec82ec59b4c
parent cdfd5e323720ce5ad2edf8b15a86db9c539b2edc

Add metrics when users switch patchsets using selector

Change-Id: Iba597473aacb1d755ad37022d07f92931ecb9973

polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js

diff --git a/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js b/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js
index 3bf3697..c00c0fb 100644
--- a/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js
+++ b/polygerrit-ui/app/elements/diff/gr-patch-range-select/gr-patch-range-select.js
@@ -25,6 +25,7 @@
 import {htmlTemplate} from './gr-patch-range-select_html.js';
 import {PatchSetBehavior} from '../../../behaviors/gr-patch-set-behavior/gr-patch-set-behavior.js';
 import {GrCountStringFormatter} from '../../shared/gr-count-string-formatter/gr-count-string-formatter.js';
+import {appContext} from '../../../services/app-context.js';
 
 // Maximum length for patch set descriptions.
 const PATCH_DESC_MAX_LENGTH = 500;
@@ -78,6 +79,11 @@
     ];
   }
 
+  constructor() {
+    super();
+    this.reporting = appContext.reportingService;
+  }
+
   _getShaForPatch(patch) {
     return patch.sha.substring(0, 10);
   }
@@ -285,8 +291,14 @@
     const target = dom(e).localTarget;
 
     if (target === this.$.patchNumDropdown) {
+      if (detail.patchNum === e.detail.value) return;
+      this.reporting.reportInteraction('right-patchset-changed',
+          {previous: detail.patchNum, current: e.detail.value});
       detail.patchNum = e.detail.value;
     } else {
+      if (detail.basePatchNum === e.detail.value) return;
+      this.reporting.reportInteraction('left-patchset-changed',
+          {previous: detail.basePatchNum, current: e.detail.value});
       detail.basePatchNum = e.detail.value;
     }